Each address (Sponsor) can delegate its fight to another address (Mercenary), while limiting the withdrawal and spending of APs.
The Sponsor
Sponsor is the address that initiates the sponsor-mercenary contract by sending an invitation to a Mercenary address.
Sponsor has control over all the NFTs and the APs.
Sponsor controls the withdraw of the APs and the system will share the agreed portion to the mercenary.
Sponsor cannot terminate a sponsor-mercenary contract, but instead the address owner can transfer the NFTs to another address.
The Mercenary
Mercenary can terminate a Sponsor-Mercenary contract.
Mercenary can use the characters and the weapons in the Sponsor address in Arena Fight. However, the Mercenary cannot transfer them.
The reward goes into the Sponsor address and Mercenary will receive the agreed share when the Sponsor withdraws it.
Profit Sharing
The profit will be automatically distributed to the Sponsor and the Mercenary according to the agreed split proportion when starting the Sponsor-Mercenary contract.
Limitation
An address can delegate to one address only. An address can only accept delegation from another address concurrently.
That means the Sponsor-mercenary is a one-to-one relationship until the contract is terminated by the mercenary
An address cannot be a sponsor and mercenary at the same time.
A mercenary cannot fight its own battle when the it is in a sponsor-mercenary contract